<template>
  <div class="todo-container">
    <div class="todo-wrap">
      <Header :addNewTodo='addNewTodo'/>
      <List 
      :todoList='todoList' 
      :singleCheckHandle='singleCheckHandle'
      :singlDeleteHandle='singlDeleteHandle'
      />
      <Footer/>
    </div>
  </div>

</template>

<script>
import {v4 as uuidv4} from 'uuid'

import Header from './components/Header';
import List from './components/List';
import Footer from './components/Footer';

export default {
  name:'App',
  data(){
    return {
      todoList:[
        {id:uuidv4(),thing:'曹轩',done:false},
        {id:uuidv4(),thing:'胡静',done:false},
        {id:uuidv4(),thing:'曾黎',done:false}
      ]
    }
  },
  components:{
    Header,
    Footer,
    List
  },
  methods:{
    //1.发布事件 修改data的函数
    addNewTodo(newTodo){
      this.todoList.unshift(newTodo)
    },

    //2.单个check 修改data的函数
    singleCheckHandle(id){
      // console.log(id);
      this.todoList = this.todoList.map((item)=>{
        return item.id === id?{...item,done:!item.done}:item
      })
    },

    //3.单个删除 修改data函数
    singlDeleteHandle(id){
      const isDelete = confirm('你真的要删掉我吗=.=')
      // console.log(isDelete);
      if(!isDelete) return
      this.todoList = this.todoList.filter((item)=>item.id!==id)
    }
  }
}
</script>

<style>
/*base*/
body {
  background: #fff;
}

.btn {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}

.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}
.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}




</style>